Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
"MOS6502"
| "MOS6502" an emulator of the MOS 6502 computer architecture. | |
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Creating a virtual machine instance:
create a new instance of the MOS 6502 virtual machine |
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For the virtual machine, the following properties can be queried:
"MOS6502"
obj["CycleCount"] | the number of cycles the machine has been run | |
obj["MemoryState"] | ||
obj["MemoryView"] | ||
obj["ProcessorState"] | ||
obj["StepCount"] | the number of steps the machine has been run |
▪
For the virtual machine, the following commands can be executed using :
"MOS6502"
return an interactive debugger | ||
load a list of integers bin | ||
read the contents of the memory address addr | ||
write val addr | ||
reset the state of the processor, setting the program counter to org | ||
reset the machine, loads bin org | ||
run n | ||
run n |
Examples | MoreExamples⊳ |
Create a new instance of the virtual machine:
"MOS6502"
In[1]:=
mos6502=
["MOS6502"]
 | VirtualMachine |
Out[1]=
VirtualMachineObject
 |  |
|
Get information about the object:
In[2]:=
Information[mos6502]
Out[2]=
VirtualMachineObject | |||||||||
|
Obtain the state of the processor:
In[3]:=
mos6502["ProcessorState"]//Dataset
Out[3]=
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 |
Load a program that adds the numbers 16^^C0 and 16^^C4 and stores the result in the accumulator:
In[4]:=
 | VirtualMachineExecute |
Out[4]=
VirtualMachineObject
| |
|
Set the program counter to the start of the program:
In[5]:=
| VirtualMachineExecute |
Out[5]=
VirtualMachineObject
| |
|
Run the machine for 4 steps and get a trace of the execution:
In[6]:=
| VirtualMachineExecute |
Out[6]=
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Verify the program has correctly added the two numbers:
In[7]:=
BaseForm[mos6502["ProcessorState"]["Accumulator"],16]
Out[7]//BaseForm=
84
16
""